Plow.



No. 650,771. Patented May 29, I900.

G. C. AVERY.

PLOW.

(Application filed Nov. 29, 1899.)

(No Model.) 2 Sheets8heet l.

ii vl eo oe W @W M w airs/away No. 650,77l. Patented May 29, I900.

a. c. AVERY.

PLOW.

lication filed Nov n n n u NITED STATES- PATENT OFFICE.

GEORGE ojAvEEY, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO THE B. E. AVERY &sons, or SAME PLACE.

PLOW.

SPECIFICATION forming part of Letters Patent No. 650,771, dated May 29,1900.

Application filed November 29,1899. erial No. 738,701. (No model.) 7 7if 7 To all whom it may concern:

Be it known that I, GEORGE O. AVERY, a citizen of the United States,residing at Louisville, in the county of Jefferson and State ofKentucky, have invented certain new and usefulIrnprovements in Flows;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as Will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in plows, and particularly to thatclass of plows known as double-inoldboard or middleburster plows.

It consists in aplow having a suitable share and moldboard, astandardcarrying the same, an adjustable shoe or depth-runner compris: ingdivided runners pivoted at their forward ends to the lower end of thestandard and adjustably connected at their rear ends to the moldboardand a rudder or knife pivotally mounted between the portions of thedepthrunner, and means for adjusting the said knife or rudder todifferent depths with respect to the runner in order to hold the plowsteady in its movements.

It also consists in certain other novel constructions, combinations, andarrangements of parts, as will be hereinafter fully described andclaimed.

In the accompanying drawings, Figure 1 represents a side elevation of aburster-plow constructed in accordance with my invention. Fig. 2represents a vertical section through the said plow, the standard anddepth-runners being shown in side elevation. Fig. 3 represents a bottomplan viewof the plow, and Fig. 4 represents a vertical transversesection through the plow and the depth-runner.

My invention is designed to provide a middle-burster or double-moldboardplow of sup'erior qualityand one whichshall be provided with adepth-runner and a guidingrudder, both of which are adjustable.

. In carrying out my invention I preferably curve the beam 1 of the plowdownwardly and forwardly, so as to form a standard, as 2, to which aresecured the frog 3, share 4, and moldboards 5. The frog 3 is made alikeon both sides of the standard and near its forward end is fastenedthereto bya bolt 6,

.standard without passing a bolt-hole through the standard at thispoint, and thereby materially weakening the same. A wedge orspace-block, as 9, may be inserted between the brace and the standard,if desired, to prevent the necessity of taking up the space be tween thebrace and the standard. A double share provided with a suitableplow-point is firmly bolted or riveted to the frog 3, while above theshare and upon each side of the plow are firmly bolted two moldboards ofthe same size and shape, the two forming when secured in position adouble moldboard 5. The plow thus has a middle ridge or bu-rster forbreaking the earth and turning it upon either side.

Important features of my invention are the adjustable depth-runner'orshoe and the adjustable knife or rudder mounted thereon. Thedepth-runner 10 is composed of two pieces arranged side by side and ofthe same shape and applied together, so as to inclose the knife 11between them. The forward end of each portion of the runner 10 is curvedupwardly and reduced in thickness, so as to project upon either side ofthe standard 2. These forward ends of the shoe-sections are pivoted tothe said standard by means of a bolt or pin, as 12, which is preferablyheld in position by means of a cotter-pin, so that it may easily beremoved, if desired. The rear ends of the runner-sections are providedwith vertical elongated slots 14, through which a bolt may be passed,securing the said rear ends to rigid brace-rods, as 13 13. The otherends of the said brace-rods are securely bolted to the moldboard 5. Theslots 14 in the shoe-sections permit of the shoe being adjusted uponitspivot-pin to different depths. The upper portions of the runner-sectionsare preferably made thin, while the lower edges are widened out andslightly rounded upon the lower surface to form a broad bearing-surfacefor engaging the ground. This broad surface is secured by forminglateral extending flanges 10 10 upon each side of the runner, one oneach section thereof.

7 Pivotally mounted between the sections of the shoe 10 is the knife orrudder 11, which is a broad plate curved at its forward end and pivotedat the said forward end between the shoe-sections upon a bolt 15. Therear end of the rudder is clamped between the shoe-sections, when thesame is bolted to the brace-rods 13. Thus the knife or rudder is pivotedto the shoe and the shoe is pivoted to the standard, and oneclamping-bolt holds both the knife or rudderand the shoe or depthrunnerin their adjusted positions.

It will be apparent from the above description that my improveddouble-moldboard plow is simple in construction and yet may be made verystrong, so as to be effective for its work. The depth runner and rudderor knife can be readily and quickly adjusted to different depths andmaterially assist in the operation of the plow.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. Aplowhavinga suitable standard, a double frog secured thereto, across-brace for securing the frog to the standard, bolts connecting thebrace to the frog and passing along each side of the standard so as tobind the frog rigidly around the standard without passing a bolt-holethrough the standard and thereby weakening the same, a double shareriveted to the said frog and double moldboards bolted to the same forproducing a bu rster or middle-ridge plow, substantially as described.

2. In a plow, the combination with the standard, share and moldboard, ofa depthrunner pivoted at its forward end to the standard, a knife orrudder pivoted at its forward end to the depih-runner, and means forindependently adjusting the rear ends of the depth-runner and rudder,substantially as described.

3. In a plow, the combination with a standard, share and moldboard, of adepth-runner pivoted at its forward end to the standard, a knife orrudder pivoted at its forward end to the depth-runner, and means foradjusting the height ofthe depth-runner and clamping the rear end of therudder thereto, substantially as described.

4. In a plow, the combination with a standard, share and moldboard, of adepth-runner comprising two sections pivoted at their forward ends uponopposite sides of the stand-- ard, means for adjusting the height oftheir rear ends and a knife or rudder pivoted at its forward end betweenthe sections of the ward ends upon opposite sides of the standard, meansfor adjusting the height of their rear ends, a knife or rudder pivotedat its forward end between the sections of the depthrunner, and meansfor adjusting the height of its rear end independently of the adjustmentof the depth-runner, substantially as described.

6. In a plow, the combination with a standard, share and moldboard, of adepth-runner comprising two sections pivoted at their forward ends onopposite sides of the standard, a knife or rudder pivoted at its forwardend between the sections of the depth-runner, and means for adjustingthe height of the rear ends of the depth-runner and clamping the knifeor rudder between its sections, substantially as described.

7. In a plow, the combination with a suitable standard, moldboard andshare, of a depth-runner, comprising two sections of similar shape,applied side by side and pivoted at their forward ends to each side ofthe plow-standard, the said sections having vertical slots at their rearends, brace-rods rig idly secured to the moldboard and extending towardthe runner, a bolt passing through eyes in the said rods and through theslots in the runner, and a knife or rudder pivoted between the saiddepth-runner sections, whereby the said runner may be clamped indifferent adjusted positions between the runnersections, substantiallyas described.

8. A double-moldboard plow, comprising a standard, a double frog, adouble share secured thereto, and a double moldboard secured to thesame, a depth-runner arranged beneath the moldboard and formed of twosections having their forward ends curved forwardly and pivotallyattached on each side of the plow-standard, the said runner-seetionsbeing provided with vertical, elongated slots at their rear ends,laterally-extending flanges formed upon the lower edges of the saidsections to provide a broad bearing-surface, a knife-plate or rudderpivoted between the sections of the runner, the said rudder being curvedat its forward end and pivoted between the forward ends of therunner-sections, rigid brace-rods extending from the moldboard to eachside of the runner, a clamping-bolt passing through eyes upon the saidbrace-rods and through the elongated slots in the runner-sections so asto clamp the runner in different adjusted positions, the knife or rudderbeing thereby clamped between the said sections in its differentadjusted positions, substantially as described.

In testimony whereof I hereunto allix my signature in presence of twowitnesses.

GEORGE G. AVERY.

Vitnesses:

S. E. WIARD, 'O. G. KANsroN.

